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6851.

Question : Which hormone causes dilation of blood vessels, increased oxygen consumption and gluconeogenesis

Answer»

ACTH
insulin
adrenaline
glucagon

6852.

Question : Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogensis?

Answer»

Glucagon
ACTH
Insulin
Adrenaline

Solution :Adrenaline (Epinephrine) hormone is secreted by aderenal medulla under the CONDITIONS of emergency. THEREFORE it is also known as emergency hormone. During emergency. It is released and causes dilation of blood vessels, so that the blood flow is increased. It also increase HEART BEAT so that more oxygemn is consumed and it also increase blood glucose level.
6853.

Question : Which hormone brings about stomatal closure during severe drought conditions?

Answer»


ANSWER :Abscisic ACID
6854.

Question : Which hormonal deficiency is responsible for the following Goitre

Answer»

SOLUTION :THYROXINE
6855.

Question : Which hormonal deficiency is responsible for the following disorders Cretinism

Answer»

SOLUTION :THYROXINE
6856.

Question : Which hormonal deficiency is responsible for the following Cretinism

Answer»

SOLUTION :THYROXIN
6857.

Question : Which hormonal deficiency is reponsible for the following ? (a) Diabetes mellitus, (b) Goitre, (c ) Cretinism

Answer»

Solution :(a) Diabetes mellitus
Diabetes mellitus is characterized by abnoramally HIGH glucose levels in the blood due to the DEFICIENCY of hormone, called insulin.
(b) GOITRE
Goitre is charactrised by an abnormal enlargement of the thyroid gland due to the deficiency of thyroxin
(c ) CRETINISM
Cretinism is characterized by stunted growth in the BABY due to the deficiency of thyroid hormone in the body.
6858.

Question : Which hormnal deficiency is responsible for the following : Diabetes mellitus

Answer»

SOLUTION :INSULIN
6859.

Question : Which hormnal deficiency is responsible for the following : Goitre

Answer»

SOLUTION :THYROID `(T_(3))`
6860.

Question : Which hormnal deficiency is responsible for the following : Cretinism

Answer»

SOLUTION :HYPOTHYROIDISM `(T_(4))`
6861.

Question : Which has more DNA and less RNA-euchromatin or heterochromatin ?

Answer»

SOLUTION :EUCHROMATIN.
6862.

Question : Which of the following has H-shaped grey matter ?

Answer»

CEREBRUM
spinial cord
cerebellum
medulla OBLONGATA

6863.

Question : Which group of plants does not has free living existence of male and female gametophyte ?

Answer»

GYMNOSPERMS 
Bryophytes
Pteridophytes 
Both (B) and (C

ANSWER :A
6864.

Question : Which group of plants dominate the Earth today? Define it.

Answer»

Solution :ANGIOSPERMS are the GROUP of PLANTS PRODUCING ovules enclosed by OVARY.
6865.

Question : Which group of plant has little economic importance but great ecological importance ?

Answer»

Bryophytes
Pteridophytes
Gymnosperms
Both A and B

Solution :Bryophytes are of little ECONOMIC IMPORTANCE but GREAT ECOLOGICAL importance.
6866.

Question : Which group of organisms possess nematoblasts?

Answer»

SOLUTION :PHYLUM COELENTERATA.
6867.

Question : Which group of organisms is described as being unsegmented animals with a head, foot and visceral hump?

Answer»

SOLUTION :PHYLUM MOLLUSCA.
6868.

Question : Which group of chordates possess sucking and circular mouth without jaws ?

Answer»

Solution :Cyclostomata : These are also called JAWLESS FISH i.e. JAWS are ABSENT in these animals.
6869.

Question : Which group of fungus is called as Sac fungi ?

Answer»

DEUTEROMYCETES
ZYGOMYCETES
ascomycetes
OOMYCETES

Answer :C
6870.

Question : Which group of animals belong to the same phylum ?

Answer»

Malarial PARASITE , Amoeba , Mosquito
Earthworm, pinworm ,Tapeworm
Prawn, Scorpion ,Locusta
Sponge,Sea ANEMONE , STARFISH

Answer :C
6871.

Question : Which group is known as decomposers and mineralisers in the biosphere?

Answer»

SOLUTION :KINGDOM MONERA.
6872.

Question : Which group has seeds enclosed in fruits?

Answer»

gymnosperms
angiosperms
phanerogamae
PTERIDOPHYTES

6873.

Question : Which group comprises of single celled eukaryotes only ?

Answer»

SOLUTION :KINGDOM PROTISTA.
6874.

Question : Which group differs from rest of the three regarding symmetry?

Answer»

Echinoderms
Annelids
Coelenterates
Ctenophores

Answer :B
6875.

Question : Which group contains bacteria?

Answer»

SOLUTION :KINGDOM MONERA.
6876.

Question : Which green alga is used by space travellers as protein rich food ?

Answer»

SOLUTION :CHLORELLA .
6877.

Question : Which graph shows the relationship between the rate of an enzymatic activity and substrate conc. (S)

Answer»




6878.

Question : Which glands are called endocrime glands ?

Answer»

SOLUTION :Endocrine glands are ductless glands that secrete their SECRETIONS in the blood and have SPECIFIC EFFECT on a specific target organ of the body. Their secretions are called hormones.
6879.

Question : Which gland is active in young children and then reduces in size but functions in the maturation of T-cells ?

Answer»

SOLUTION :THYMUS GLAND
6880.

Question : Which gland inactivated at old age ?

Answer»

ADRENAL
PINEAL
THYMUS
PITUITARY

Answer :C
6881.

Question : Which gland atrophies in adults?

Answer»

Pancreas gland
Thymus gland
Adreanal gland
Thyroid gland

Solution :Thyrmus gland is a PROMINENT gland at birth but gradually atrophies in the ADULT. It secretes a hormone THYMOSIN which is INVOLVED in producing imminity.
6882.

Question : Which generation-gametophytic or sporophytic is welldeveloped in bryophytes ?

Answer»

SOLUTION :GAMETOPHYTIC
6883.

Question : Which fungus was used to kill Roman Emperor Caesar?

Answer»

SOLUTION :AMANITA caesaria:
6884.

Question : Which fungus is used to bring about alcoholic fermentation?

Answer»

SOLUTION :SACCHAROMYCES SP.
6885.

Question : Which fungi is commonly known as imperfect fungi? (A) Basidiomycetes (B) Deuteromycetes (C) Ascomycetes (D) Phycomycetes

Answer»

BASIDIOMYCETES 
DEUTEROMYCETES 
Ascomycetes
Phycomycetes 

ANSWER :B
6886.

Question : Which fungal disease spreads by seed and flowers:

Answer»

Loose SMUT of WHEAT
CORN stunt
Covered smut of Barley
Soft rot of Potato

Answer :A
6887.

Question : Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of higher plants?

Answer»

RED and voilet
Violet and BLUE
Blue and green
Green and red

Answer :B
6888.

Question : Which fraction of soil water is available to plants for absorption by roots ?

Answer»

SOLUTION :Chesard FRACTION.
6889.

Question :Which form of sugar is transported through phloem ?

Answer»

SOLUTION : SUCROSE.
6890.

Question : Which form of water in soil is available to plants?

Answer»

SOLUTION :HYGROSCOPIC water. It is the water thatis RETAINED as a thin film around theindividual SOIL PARTICLES held tightly.
6891.

Question : Which form of RNA has a structure resumbling clover leaf

Answer»

R RNA
HN RNA
m RNA
t RNA

Answer :D
6892.

Question : Which form of malarial parasite escapes during digestion inthe alimentary canal of the mosquito ?

Answer»

SOLUTION :GAMETOCYTE
6893.

Question : Which foramen is paired in mammalian brain ?

Answer»

FORAMEN of Luschka
Foramen of magendie
Foramen of monro
Inter-ventricular foramen

Answer :A
6894.

Question : Which fluid supplies nutriftion to lens and cornea ?

Answer»

SOLUTION :AQUEOUS HUMOUR
6895.

Question : which floral family has (9)+1 arrangement of anther in the andoecium

Answer»

MALVACEAE
FABACEAE
SOLANACEAE
liliaceae

Answer :B
6896.

Question : Which family of flowering plants has the smallest seeds ?

Answer»

SOLUTION :FAMILY ORCHIDACEAE.
6897.

Question : Which factor is not limiting in normal condition for photosynthesis?

Answer»

AIR
CARBON dioxide
Water
Chlorophyll

Answer :A
6898.

Question : Which factor determines the branching patterns ?

Answer»

SOLUTION :Branching pattern is determined by the relative ACTIVITY of APICAL meristem.
6899.

Question : whicheventmarksthe animal pole of the humanovum ?

Answer»

SOLUTION : Extrusionof POLAR BODIES .
6900.

Question : Which event has been considered important in pteridophyte for evolution of seed habit ?

Answer»

SOLUTION :Development of zygote into young embryo takes place WITHIN the FEMAL gametophyte .